| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef __MESOS_PROVISIONER_AUFS_HPP__ |
| #define __MESOS_PROVISIONER_AUFS_HPP__ |
| |
| #include "slave/containerizer/mesos/provisioner/backend.hpp" |
| |
| namespace mesos { |
| namespace internal { |
| namespace slave { |
| |
| // Forward declaration. |
| class AufsBackendProcess; |
| |
| |
| // This backend mounts the images layers to the rootfs using the aufs file |
| // system. The directory layout is as follows: |
| // <work_dir> ('--work_dir' flag) |
| // |-- provisioner |
| // |-- containers |
| // |-- <container-id> |
| // |-- backends |
| // |-- aufs |
| // |-- rootfses |
| // |-- <rootfs_id> (the rootfs) |
| // |-- scratch |
| // |-- <rootfs_id> (the scratch space) |
| // |-- workdir |
| // |-- links (symlink to temp dir with links to layers) // NOLINT(whitespace/line_length) |
| class AufsBackend : public Backend |
| { |
| public: |
| ~AufsBackend() override; |
| |
| static Try<process::Owned<Backend>> create(const Flags&); |
| |
| process::Future<Option<std::vector<Path>>> provision( |
| const std::vector<std::string>& layers, |
| const std::string& rootfs, |
| const std::string& backendDir) override; |
| |
| process::Future<bool> destroy( |
| const std::string& rootfs, |
| const std::string& backendDir) override; |
| |
| private: |
| explicit AufsBackend(process::Owned<AufsBackendProcess> process); |
| |
| AufsBackend(const AufsBackend&); |
| AufsBackend& operator=(const AufsBackend&); |
| |
| process::Owned<AufsBackendProcess> process; |
| }; |
| |
| } // namespace slave { |
| } // namespace internal { |
| } // namespace mesos { |
| |
| #endif // __MESOS_PROVISIONER_AUFS_HPP__ |